Re: TH1 Basic (and old) questions
Pasha Murat (murat@cdfsga.fnal.gov)
Tue, 4 Nov 1997 18:05:25 GMT
> > I would prefer TH1::GetIntegral(binx1,binx2) and same for 2-D.
> > Otherwise if xmin,xmax do not coincide with the lower/upper limits
> > of a bin, do you expect this function to compute an approximation
> > for the integral in the bins at the edge, or do you simply want
> > to compute the bin number where xmin and xmax (bin1,bin2)correspond
> > and return the integral as the suim of bin contents from bin1 to bin2
> > included?
>
> Agree. TH1::GetIntegral(bin1,bin2) would be nice enough.
>
Hello,
histogram (by definition) knows only about bins and bin boundaries
and doesn't know anything about what's going on within the bin.
So TH1::Draw(bin1,bin2) and TH1::GetIntegral(bin1,bin2) seem to be
a) appropriate
b) suifficient.
One always can change binning if he needs.
On the contrary it doesn't seem to be a lot of sense in the result
of integration over 1/3 of the histogram bin, for example.
Pasha